Air quality monitoring system using lichens as bioindicators in central Argentina

CECILIA ESTRABOU; EDITH FILIPPINI; JUAN PABLO SORIA; GABRIEL SCHELOTTO; JUAN MANUEL RODRIGUEZ

ENVIRONMENTAL MONITORING AND ASSESSMENT

SPRINGER

Año: 2011 vol. 182 p. 375 - 383

0167-6369

Air quality studies with bioindicators have not been well developed in South America. In the city of Córdoba, there are not permanent air pollutants measurements by equipment. In order to develop an air quality biomonitoring system we applied a systematic sample in the city of Córdoba, Argentina. A total of 341 plots were sampled in the area of the city which is a square of 24 x 24 km. In each sample plot we selected three phorophytes and we estimated the frequency and cover of lichen species that growth at 1.5 m on trunks. We also calculated the IAP (Index of Atmospheric Purity) using lichen frequencies. Maps with number of lichen species, cover values and IAP was performed. The lichen community was described with nine species where Physcia undulata and P. endochryscea were the most frequent. Moreover, these two species were dominant in the community with the highest cover index. The central area of the city is considered a lichen desert with poor air quality. The Southeast and Northwest areas of the city showed the highest IAP values and number of species. In general the city shows fair air quality and few areas with good and very good air quality.